Will it work with this rfid ring (description: "blank 125khz wood ring in-built with copyable t5577 chip, can copy the tag like tk4100/em4100/em4200"

unable to read these low frequency 125 kHz rfid tags, suggest you trying proxmark 3 for clone T5577, EM4100, EM4200

support, referring to the following apps, https://apps.apple.com/us/app/nfc-ideas/id1245536234?mt=12

Can this be used with a yubikey 5 which uses nfc?

Sorry don't know that, only know suppor Yubikey NEO c but Yubikey 5 currently seemed not be supported

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ACS ACR122U NFC Reader Writer + 5 PCS Ntag213 NFC Tag + Free Software

ACS ACR122U NFC Reader Writer + 5 PCS Ntag213 NFC Tag + Free Software

Product ID: 93496605

Details

Brand
ACS
Color
white
Connectivity Technology
['usb']
Media Type
Memory Stick
Special Feature
Compact Plug &

⚡<100 ms ultra-fast reading

📶13.56 MHz NFC frequency

🔌USB 2.0 plug & play

AR$149632

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Unlock NFC Power Instantly — Your Smart Workspace Upgrade

LIGHTNING FAST READS - Reads NFC tags in under 100 milliseconds—because every millisecond counts
PLUG PLAY SIMPLICITY - USB 2.0 interface with driver-free setup for instant productivity
BUILT FOR PROFESSIONALS - Compact, durable design with wide OS support (Windows XP to 10) to fit your dynamic workflow
COMPLETE NFC STARTER KIT - Includes 5 premium Ntag213 tags, 2 UID MF1 cards, plus free SDK & NFC tool software
SEAMLESS NFC COMPATIBILITY - Supports Mifare 1k/4k, Ultralight, Ntag213/215/216, Mifare Plus & Desfire for ultimate versatility

The ACS ACR122U is a compact, USB 2.0 NFC reader/writer operating at 13.56 MHz, supporting a broad range of NFC tags including Mifare and Ntag series. It offers ultra-fast reading speeds under 100 ms, driver-free installation, and comes bundled with 5 Ntag213 tags, 2 UID MF1 cards, and free SDK software—perfect for professionals seeking reliable, plug-and-play NFC solutions.

Specifications

ASIN	B07KRKPWYC
Additional Features	Compact, Plug & Play
Best Sellers Rank	#132 in Computer Memory Card Readers
Brand	ACS
Color	white
Compatible Devices	Personal Computer
Connectivity Technology	['usb']
Customer Reviews	4.2 4.2 out of 5 stars (227)
Data Transfer Rate	12 megabits_per_second
Hardware Interface	USB 2.0
Item Dimensions L x W x H	2.56"W x 0.5"H
Manufacturer	ACS
Media Type	Memory Stick
Mfr Part Number	ACR122U
Model Name	ACR122U
Model Number	ACR122U
Operating System	Windows
Slot Count	1
UPC	716253772891
Unit Count	9 Count

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